Folding scaffold.



P. MCCARTY.

. FOLDING SGFFOLD.

APPLIOATION nu APB. 1a, 190s.

Patented Jan. 5, 1909.

me y cago, county of y the following .fis a 'FLRENCE MCCARTY, OF CHICAGO, ILLNOTIS.

FOLDING scannen-D.

Specification of Letters Patent.

Patented Jan. '5, l19,09.

Application and Ap'rn 1s, 190s. serial No. 426,832.

To all whom c't may cncern:

Beit known that I, FLORENCE MCCARTY, a citizen of the United States, residing at Chi- Cook, and State of illinois, have invented certain new and useful lmprovements in Folding Scar-folds, of .which s aecication.'

My invention re ates to folding and able brackets or scail'olds adapted for use upon the gable or inclined roofs to hold the staging in a horizontal position When build- V ing or repairing chimneys or when at other .stood by reference to fthe accom Work :upon the roof.

`The object of myinvention is to provide a fportable scaffold which shall be of simple construction, `readily folded into 'small complpss when not in use andoneV which shall be m and stable when set up for service.

A further object of my invention is to provide a deviceof Lthe character under consider ation which maybereadily adjustedfor roofs `of `substantially staging shall be held -perfectly horizontal.

Other objects will appear hereinafter.

With these .objects `1n view, my invention consists generally in a pair of base bars arranged parallel and rigidly-connected at the ends, 4the same being spaced ap art suFliciently to give lample stability tothe device, a pair of tread, bars for `holding the .'staging, the same being pivotally connected at one end to the base bars and suitably spaced apa'rt, a single b ar forming a leg and pivotally connected to the op osite end of the basebarsand spaced centra ly betweenythem and said tread bars, and said tread bars andsaid legeach bein@ provided with a plurality of bolt' holes and il olt extending therethrough `to hold the tread barsat thepro` er angle.

My invention furt details of construction and arrangements .of parts all as will be hereinafterfully described yanc particularly A,pointed out in the claims.

My invention will be more readily undereuries drawings forminga part of this speci cation, and in which,

Figure 1 is a scalfo'ldemboy ying my invention in operative position upon a roof, lFig. 2 is a perspective view of the device in open posit1on, .and Fifr. 3 is a perspective View of the same in folded position. In practice, .two of the folding brackets or scaffolds are employed to support the staging vas illustrated in Fig. 1, but inasmuch as the erspective view illustrating a and are rigidly port- `the ends.

y vF1gu3. `any angle y1n order vthat the /8 and 9,

er consists in various` te the loop or a rope or two brackets `are identical, one only will b e apart inthe manner hereinafter described `connected by the bolts or extending through them near Pivotally mounted on the bolt 2 are a pair of tread bars 3-3 which support the staving 4 when in use. ed on the bolt2 rivets `2 and 2 is a leg 5 which is held centrally of the bars or'members 1, 1 and 3, 3 by theblocks 6-6. When the device is closed ythe members 3 fold between and close against the members 1 and the member 5 folds between the members 3. The members '1, 3 and 5 are all substantially the same in cross section, hence the device folds neatly together, the edges 0f the several members being flush with each other as illustrated in 7 indicates a block interposed between the ends `of the members 3 for holding them apart orin roper lateral position.

The members 6 and 7 are of substantially the same thickness as the members 3 and 5 and hold the several `members in position to permit the others to fold between them. The members 3 and 5 are shorter than the members V1V by the length of the respective blocks and 7. The members 3 and 5 are each provided with a plurality ofholes 8 and 9 respectively to receive a pin or bolt 10, the pin 101passing throug-y both of the members 3 and the member 5 locking the same in adjusted position.

the device may be adjusted forroofs of any angle to bring the members 3 into horizontal position to support the staging 4.

Swiveled upon the bolt 2 is a bail 11 hav- `ing `the central loop or extension 12 to which the device is securedfor suspending the scaffold upon the roof. This may consist in a hook 13 which. may be secured directly cable 14`to one end of which the hook may be att-ached.

Having described my invention what Ig claim as new and desire to secure by Letters Patent, is:

1. In Va device of the class described, a

lpair of base bars rigidly connected at the ends, and a pair of tread bars pivotally connected at one end to said base bars and spaced apart at the pivotal end, a single Pivotally mounti By a selection of the proper holes leg pivotally connected `between the oppol site zeiidsiol"4v saidbase bars and 'spaced en l l trallybetween them., said base bars, tread bars and leg being substantially the same 1 in cross section, and said tread bars and said 5. leg each being providedwith a plurality of cnneoted at the ends, a pair of tread bars ltween the ends of said pivotally connected at one end to and bebase bars,` a single leg pivotally Connected at one end between l5 the opposite ends of said base bars, a pair of 90eme blocks interposedbetween the end of said legand the ends of said base bars, said tread bars being shorter than said base bars by the length of said blocks and means for adjustably connecting said leg and said tread 20 bars, substantially as described.

In testimony whereof I have signed my name to Jhis specification 1n Jche presence of two subscribing Witnesses.

hi FLORENCE XskMqoARTY.

. mal' ylVinesses:

s JOHN MCC'ARTHY, e yHOWARD-S. AUs'rN. 

